文献类型：期刊文献

英文题名：Iron Isotope Constraints on the Mineralization Process of Shazi Sc-Rich Laterite Deposit in Qinglong County, China

作者：Sun, Jun Liu, Yunlong Liu, Xiqiang

第一作者：孙军

通信作者：Liu, XQ[1];Liu, XQ[2]

机构：[1]Guizhou Inst Technol, Dept Resource & Environm Engn, Guiyang 550003, Peoples R China;[2]Guizhou Univ Finance & Econ, Sch Management Sci, Guiyang 550025, Peoples R China;[3]Chinese Acad Sci, Inst Geochem, Key Lab High Temp & High Pressure Study Earths In, Guiyang 550081, Peoples R China;[4]Univ Chinese Acad Sci, Beijing 100049, Peoples R China

第一机构：贵州理工学院资源与环境工程学院

通信机构：corresponding author), Chinese Acad Sci, Inst Geochem, Key Lab High Temp & High Pressure Study Earths In, Guiyang 550081, Peoples R China;corresponding author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.

年份：2021

卷号：11

期号：7

外文期刊名：MINERALS

收录：;Scopus(收录号：2-s2.0-85109155545);WOS:【SCI-EXPANDED(收录号:WOS:000676455000001)】；

基金：This study was supported by the Natural Science Foundation of China (Grant No. 41262005), the joint fund of the science and technology department of Guizhou Province (No. LH[2014]7358), and the Startup Project of High-level Talents of the Guizhou Institute of Technology (No. XJGC20140702 and XJGC20131204).

语种：英文

外文关键词：laterite; scandium deposit; iron isotope; Emeishan basalt

摘要：The Shazi deposit is a newly discovered, potential large-scale scandium deposit located in Qinglong, southwestern Guizhou Province, China. The iron isotopic composition of magnetite in fresh basalt, weathered basalt, and mineralized laterite was investigated. The Fe content of fresh basalt and of weathered basalt vary from 15.41 wt.% to 15.51 wt.% and from 14.60 wt.% to 15.12 wt.%, respectively, while the delta Fe-56 of magnetite varies from 0.23 parts per thousand to 0.29 parts per thousand and from 0.02 parts per thousand to 0.07 parts per thousand. Laterite has the highest Fe content, in the range of 23.53%similar to 28.95%, but delta Fe-56 is similar to weathered basalt, and the range of variation is -0.09 parts per thousand-0.03 parts per thousand. The change in iron isotope composition in weathered basalt and laterite is related to the hydrolysis of clinopyroxene. Combined with the existing research results, the genesis of scandium deposit is considered to be related to in situ hydrolysis in deep and surface weathering leaching of Emeishan basalt.